名校
解题方法
1 . 若
是等差数列,首项
,则使前
项和
成立的最大正整数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c649f07e7ea8ee23ba2f840e6e022427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49763402b2f2023f0ba64c37924267d3.png)
您最近一年使用:0次
名校
解题方法
2 . 1934年,东印度(今孟加拉国)学者森德拉姆(Sundaram)发现了“正方形筛子如下图,则其第10行第11列的数为__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/b686d25d-97bf-4596-96e3-0ccad8ea9671.png?resizew=152)
您最近一年使用:0次
3 . 写出下列不等式的解集,
:____________ ;
:____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab99ae7cf9e5485730b0928bf01126f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b9c8c9fd4cd80dfed28d96d1dc7bfe.png)
您最近一年使用:0次
名校
解题方法
4 . 已知数列
的前
项和
,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b75dbb20178da2eec9ff11a9c74e841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
您最近一年使用:0次
2022-09-20更新
|
1514次组卷
|
6卷引用:内蒙古自治区呼和浩特市第六中学2022-2023学年高二上学期10月月考数学试题
内蒙古自治区呼和浩特市第六中学2022-2023学年高二上学期10月月考数学试题辽宁省沈阳市第四中学2022-2023学年高三上学期9月月考数学试题上海奉贤区致远高级中学2022-2023学年高二上学期期中数学试题(已下线)第四章 数列 讲核心 02(已下线)4.3.2 等比数列的前n项和公式(精练)-【题型分类归纳】2022-2023学年高二数学同步讲与练(人教A版2019选择性必修第二册)上海外国语大学附属外国语学校2022-2023学年高二下学期期中数学试题
解题方法
5 . 如图所示,在平面四边形ABCD中,若
,
,
,
,则
的面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1c5491be007f01199495e64c6146d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b850b6c714abe0d117eae47783230b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577669443584/2975031634386944/STEM/cfe66c07-119c-4135-910f-ead992da69aa.png?resizew=197)
您最近一年使用:0次
6 . 在
中,内角A,B,C所对的边分别为a,b,c,其中
,
且
,则
的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad1398c5c60229f89a704e2a25ba7f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad09921d9904335a83078262ce62a473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ee58de9c6d1585068e22d393076d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
7 . 观察下列算式:
,用你所发现的规律可求得
的末位数字是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399b591b4457260a44208872e8a9798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e4ae7cfe4ec9b923c0698bccf16840.png)
您最近一年使用:0次
解题方法
8 . 若变量
满足约束条件
,则目标函数
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c065c431c64c68f72f512f4f34051b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a125cb40ab3d54de9f3a444032af5e4.png)
您最近一年使用:0次
名校
解题方法
9 . 若实数x,y满足约束条件
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6612f75a07e6b8948b53f2e146e06158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7c99486743e17633d086d868f0680c.png)
您最近一年使用:0次
2022-04-10更新
|
316次组卷
|
2卷引用:内蒙古呼和浩特市2022届高三第一次质量数据监测文科数学试题
名校
10 . 设
的内角
,
,
所对的边分别为
,
,
,若
,
,则
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88aa8e8fbfc6961804067e2ff0bb02cb.png)
您最近一年使用:0次
2022-08-14更新
|
914次组卷
|
4卷引用:内蒙古自治区呼和浩特市第六中学2022-2023学年高二上学期10月月考数学试题